Materials Data on Pr3Ho by Materials Project

HoPr3 is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ho is bonded to twelve Pr atoms to form HoPr12 cuboctahedra that share corners with four equivalent HoPr12 cuboctahedra, corners with eight equivalent PrPr8Ho4 cuboctahedra, edges with eight equivalent HoPr12 cuboctahedra, edges with sixteen equivalent PrPr8Ho4 cuboctahedra, faces with four equivalent HoPr12 cuboctahedra, and faces with fourteen PrPr8Ho4 cuboctahedra. There are four shorter (3.67 Å) and eight longer (3.68 Å) Ho–Pr bond lengths. There are two inequivalent Pr sites. In the first Pr site, Pr is bonded to four equivalent Ho and eight Pr atoms to form PrPr8Ho4 cuboctahedra that share corners with twelve equivalent PrPr8Ho4 cuboctahedra, edges with eight equivalent HoPr12 cuboctahedra, edges with sixteen PrPr8Ho4 cuboctahedra, faces with four equivalent HoPr12 cuboctahedra, and faces with fourteen PrPr8Ho4 cuboctahedra. There are four shorter (3.67 Å) and four longer (3.68 Å) Pr–Pr bond lengths. In the second Pr site, Pr is bonded to four equivalent Ho and eight equivalent Pr atoms to form PrPr8Ho4 cuboctahedra that share corners with four equivalent PrPr8Ho4 cuboctahedra, corners with eight equivalent HoPr12 cuboctahedra, edges with twenty-four PrPr8Ho4 cuboctahedra, faces with six equivalent HoPr12 cuboctahedra, and faces with twelve PrPr8Ho4 cuboctahedra.